x = int(input())
if x in range(400, 600): print(8)
elif x in range(600, 800): print(7)
elif x in range(800, 1000): print(6)
elif x in range(1000, 1200): print(5)
elif x in range(1200, 1400): print(4)
elif x in range(1400, 1600): print(3)
elif x in range(1600, 1800): print(2)
else: print(1) x = int(input()) x int(input()) int input() input if x in range(400, 600): print(8)
elif x in range(600, 800): print(7)
elif x in range(800, 1000): print(6)
elif x in range(1000, 1200): print(5)
elif x in range(1200, 1400): print(4)
elif x in range(1400, 1600): print(3)
elif x in range(1600, 1800): print(2)
else: print(1) x in range(400, 600) x range(400, 600) range 400 600 elif x in range(600, 800): print(7) x in range(600, 800) x range(600, 800) range 600 800 elif x in range(800, 1000): print(6) x in range(800, 1000) x range(800, 1000) range 800 1000 elif x in range(1000, 1200): print(5) x in range(1000, 1200) x range(1000, 1200) range 1000 1200 elif x in range(1200, 1400): print(4) x in range(1200, 1400) x range(1200, 1400) range 1200 1400 elif x in range(1400, 1600): print(3) x in range(1400, 1600) x range(1400, 1600) range 1400 1600 elif x in range(1600, 1800): print(2) x in range(1600, 1800) x range(1600, 1800) range 1600 1800 x = int(input()) int(input()) x
x = int(input())
if x in range(400, 600): print(8)
elif x in range(600, 800): print(7)
elif x in range(800, 1000): print(6)
elif x in range(1000, 1200): print(5)
elif x in range(1200, 1400): print(4)
elif x in range(1400, 1600): print(3)
elif x in range(1600, 1800): print(2)
else: print(1)